package com.czhlearn.controller;

import com.czhlearn.pojo.Result;
import com.czhlearn.pojo.User;
import com.czhlearn.service.UserService;
import com.czhlearn.utils.JwtUtil;
import com.czhlearn.utils.Md5Util;
import com.czhlearn.utils.ThreadLocalUtil;
import jakarta.validation.constraints.Pattern;
import org.hibernate.validator.constraints.URL;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisOperations;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.data.redis.core.ValueOperations;
import org.springframework.util.StringUtils;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.*;

import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.TimeUnit;

/**
 * 用户
 *
 * @program: big-event
 * @description: 用户操作
 * @author: czh
 * @create: 2023-12-15 16:52
 **/

@RestController
@RequestMapping("/uesr")
@Validated
public class UserController {

    @Autowired
    private UserService userService;


    @Autowired
    private StringRedisTemplate stringRedisTemplate;

    /**
     * 注册用户
     *
     * @param username 用户名
     * @param password 密码
     * @return
     */
    @PostMapping("/register")
    public Result register(@Pattern(regexp = "^\\S{5,16}$") String username, @Pattern(regexp = "^\\S{5,16}$") String password) {
//        if (username != null && username.length() >= 5 && username.length() <= 16 &&
//                password != null && password.length() >= 5 && password.length() <= 16) {
        System.out.println(username + "---" + password);
        //查询用户是否重复
        User user = userService.findByUserName(username);
        if (user == null) {
            // 未占用
            //注册
            userService.register(username, password);
            return Result.success();
        } else {
            //占用
            return Result.error("用户名已被占用");
        }
//        }else {
//            return Result.error("参数不正确");
//        }
    }

    /**
     * 登录用户
     *
     * @param username
     * @param password
     * @return
     */
    @PostMapping("/login")
    public Result<String> login(@Pattern(regexp = "^\\S{5,16}$") String username, @Pattern(regexp = "^\\S{5,16}$") String password) {
//        根据用户名查询User
        User loginUser = userService.findByUserName(username);
//        判断是否查询到

        if (loginUser == null) {
            return Result.error("用户名错误");
        }
//        判断密码是否正确
        if (Md5Util.getMD5String(password).equals(loginUser.getPassword())) {
//            登录成功
            Map<String, Object> map = new HashMap<>();
            map.put("id", loginUser.getId());
            map.put("username", loginUser.getUsername());
            String token = JwtUtil.genToken(map);
            //把token存储到redis中
            ValueOperations<String, String> operations = stringRedisTemplate.opsForValue();
            operations.set(token, token, 1, TimeUnit.HOURS);
            return Result.success(token);
        } else {
            return Result.error("密码错误");
        }
    }

    /**
     * 获取用户信息
     */

    @GetMapping("/userinfo")
    public Result<User> userinfo(/*@RequestHeader(name = "Authorization") String token*/) {
//        Map<String, Object> map = JwtUtil.parseToken(token);
//        (String) map.get("username")
//        根据用户名查询用户
        Map<String, Object> map = ThreadLocalUtil.get();
        User byUserName = userService.findByUserName((String) map.get("username"));
        if (byUserName == null) {
            return Result.error("未查询到用户数据");
        }
        return Result.success(byUserName);
    }

    /**
     * 更新用户数据
     */

    @PutMapping("/update")
    public Result update(@RequestBody @Validated User user) {

        userService.update(user);
        return Result.success();

    }

    /**
     * 更新用户头像
     */
    @PatchMapping("/updateAvater")
    public Result updateAvatarl(@RequestParam @URL String avatarUrl) {

        userService.updateAvatar(avatarUrl);
        return Result.success();
    }

    /**
     * 更新用户密码
     */

    @PatchMapping("/updatePwd")
    public Result updatePwd(@RequestBody Map<String, Object> params, @RequestHeader("Authorization") String token) {
        //1、校验参数
        String oldPwd = (String) params.get("old_pwd");
        String newPwd = (String) params.get("new_pwd");
        String rePwd = (String) params.get("re_pwd");
        if (!StringUtils.hasLength(oldPwd) || !StringUtils.hasLength(newPwd) || !StringUtils.hasLength(rePwd)) {
            return Result.error("缺少必要参数");
        }
        //原密码是否正确
//        调用根据用户名拿到原密码
        Map<String, Object> map = ThreadLocalUtil.get();
        String username = (String) map.get("username");
        User byUserName = userService.findByUserName(username);
        String password = byUserName.getPassword();
        System.out.println(password + "------" + Md5Util.getMD5String(oldPwd) + "-----" + oldPwd);
        if (!password.equals(Md5Util.getMD5String(oldPwd))) {
            return Result.error("原密码填写不正确");
        }
        if (!newPwd.equals(rePwd)) {
            return Result.error("两次填写的新密码不一致");
        }
        //2调佣完成密码更新

        userService.updatePwd(newPwd);
        //删除 redis 中token
        ValueOperations<String, String> operations = stringRedisTemplate.opsForValue();
        operations.getOperations().delete(token);
        return Result.success();
    }


}
